Portable object comprising a near-field communication device
US10346830B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2017 |
| Grant date | Jul 9, 2019 |
| Priority date | — |
| Expiry date | Nov 16, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04R20/26
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A portable object includes a near-field communication device. The communication device includes an electronic chip provided with two terminals connected to an electrical circuit including an antenna and a filter. The communication device is provided to receive and transmit at a defined frequency corresponding to the resonance frequency of the electrical circuit. The portable object includes a control element which is able to be displaced between two predefined positions, i.e. an active position in which the communication device is activated and a passive position in which the communication device is deactivated. The electrical circuit includes, furthermore, a bypass branch provided with a mechanical switch which is able to switch between an open state and a closed state in response to a displacement of the control element from one to the other of its predefined positions causing a modification in the resonance frequency of the electrical circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.